Extremal black disks in QCD

TL;DR

This paper argues that in high energy QCD, a true black disk wave function must include many quarks, indicating the essential role of non-vacuum reggeon loops in black disk formation, based on group manifold S-matrix decomposition.

Contribution

It introduces the necessity of quark inclusion and non-vacuum reggeon loops in black disk wave functions using group theory methods.

Findings

Black disk wave functions necessarily contain many quarks.

Non-vacuum reggeon loops are essential for black disk formation.

Group manifold decomposition underpins the analysis.

Abstract

We argue that in the high energy QCD a true black disk wave function necessarily contains many quarks. This corresponds to necessity of non-vacuum reggeon loops in formation of a black disk. The result comes from decomposition of the black disk S-matrix in characters on group manifold.